﻿using System;
using System.Collections.Generic;
using System.Text;

namespace program05
{
        //课程1的类
        public class Course1
        {
            //课程各
            public string Name { get; set; }

            //学时
            private int _period;

            public int Period
            {
                get => _period;
                set => _period = value < 0 ? 0 : value;
            }

            //学分
            private int _credit;

            public int Creidt
            {
                get => _credit;
                set => _credit = value < 0 ? 0 : value;
            }

            //成绩
            private int _score;

            public int Score
            {
                get => _score;
                set => _score = value < 0 || value > 100 ? 0 : value;
            }

            public override string ToString() => $" 课程：{Name}，学时：{Period}，学分：{Creidt}，成绩：{Score}";
        }
    }
